How does the sexual life cycle of the human species introduce genetic
variations? *
2 points
1. Random fertilization
II. Crossing over of alleles
III. Independent assortment of chromosomes
O I, II, and III
O I and II only
O I only
O I and III only

Answers

Answer 1
All of the above- 1, 2, and 3 These introduce variation into the chromosome or into the zygote and create cells and offspring unique from the parents.

Related Questions

the four most abundant elements in living organisms are

Answers

Answer:

CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen

Explanation:

hope it helps you

what is Krebs cycle?
Is Krebs cycle also known as cellular respiration?

Answers

Explanation:

The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. It takes place in the mitochondria, using up oxygen and producing carbon dioxide and water as waste products, and ADP is converted to energy-rich ATP.

No Krebs cycle is not known as cellular respiration

what is mauna loa volcano intensity?

Answers

Answer:

And over time, volcanoes made from low lava viscosity are wide and have a shallow slope; these are known as shield volcanoes. Classic examples of shield volcanoes are Mauna Kea and Mauna Loa in Hawaii, as well as Olympus Mons on Mars. When lava has a high viscosity, it's very thick and doesn't flow very well at all.

9,600 cubic miles

Mauna Loa is the largest volcano on Earth with an estimated volume of 9,600 cubic miles (40,000 cubic kilometers). It makes half of the area of the Island of Hawaii. Mauna Loa began to form nearly a million years ago. There is a caldera, Mokuaweoweo, at the summit and rift zones extend to the northeast and southwest.

Explanation:

Which group was not present in Linnaeus' system but is present in modern classification systems? A) Species B) Kingdom C) Domain D) Phylum HELP ME

Answers

Answer:

D) Phylum

Explanation:

The group that was not present in the Linnaeus' system but is present in modern classification systems is Domain. The correct option is C.

What is Linnaeus classification system?

The Linnaean classification system is based on a hierarchy of groupings known as taxa. Taxa vary from kingdoms to species.

The kingdom is the most extensive and inclusive grouping. It is made up of organisms that have only a few basic resemblances.

The Linnaean system is significant because it paved the way for the use of binomial nomenclature to distinguish between species.

Scientists could communicate instead of using misleading common names once the system was implemented.

Domain is a group that was not present in Linnaeus' system but is present in modern classification systems.

Thus, the correct option is C.

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Choose T (True) or F (False)

Answers

Answer:

a) true

b) true

c) false

d) true

e) false

Which is true about sex-linked traits?
a. They are never seen in women
b. They are found on Barr bodies
c. They are carried on the Y chromosome
d. They are passed from mother to son

Answers

Answer:

I think the answer is B

Explanation:

In which biological event is chemical energy transformed into mechanical energy?
O muscular movement
O
photosynthesis
O bioluminescence

Answers

Muscular movement is the correct answer

The event in which the chemical energy transformed into mechanical energy is muscular movement. The correct option is A.

What is muscular movement?

Muscles contract and then relax to move body parts. Muscles can pull bones, and yet they can't push them back into position.

As a result, they function in pairs of flexors and extensors. To flex a limb at a joint, the flexor contracts.

We discussed the skeletal system and the gestures that can take place at joints, such as flexion, extension, abduction, inversion, and so on.

These movements are produced by skeletal muscles pulling bones in different directions.

When ATP is hydrolyzed during cross-bridge cycling, chemical energy is converted to mechanical energy during muscle contraction.

As the muscle deforms or performs external work, this mechanical energy is distributed and stored in the tissue.

Thus, the correct option is A.

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Most igneous rocks form by which processes?
PLEASE SOMEONE HELP ME ILL GIVE YOU BRAINLIST ANSWER!!!

Answers

Answer:

C. Melting and Solidification

Explanation:

how do you think the endocrine system and the nervous system work together to control communication in the body?

Answers

Explanation:

Ans. They use the help of the brain and nerves

Which activity would you do to find out presence of moisture in soil sample? Describe it with a diagram

Answers

You could calculate the moisture content of the soil by subtracting the weight of the dry soil from the weight of the moist soil, and then divide by the weight of the dry soil.

Write a title for each step of primary

succession

Answers

Answer:

The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.

BLOCK:
Name each number stage in the plant cell mitosis diagram below.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.

Answers

CUADRA:

NOMBRE CADA ETAPA NUMERADA EN EL DIAGRAMA DE MITOSIS DE CÈLULAS VEGETALES A CONTINUACIÒN

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

How do mangroves and coral reefs show mutual relationship?

Answers

Answer:

The answers below⤵

Explanation:

Mangroves serve as a shoreline protection.

When situated near coral reefs, mangroves affect the reef communities in many interesting ways. Mangroves are trees that can grow in environments with poor oxygen content. ... Mangroves serve as shoreline protection, and, when situated near reefs, as nurseries for many species of reef fish.


Picture:

manilla and linen are derived from which plants, respectively

Answers

Answer:

flax is a stem fiber that is used to make linen. a smooth shiny fabric made from flax

which level of an energy pyramid has the least amount of food energy?

Answers

Answer: Tertiary consumers receive 10% of the energy available at the secondary level (0.1% of the original energy). As a result, tertiary consumers have the least amount of energy and are therefore at the top of the pyramid (the smallest part).

Which measurement would changif you traveled from Earth to the moon?

A.your weight
B.your density
C. your mass
D.your height​

Answers

Answer:

A. your weight

Explanation:

B, C, and D are all fixed by the number of atoms in your body. Weight is determined by the gravitational pull which would be less on the moon.

Yellow hair (Y) can be crossed with red hair (R) to create strawberry-blond. A yellow haired person is crossed with a strawberry-blonde person. What is the genotypic & phenotypic ratio of the children?

Answers

Answer:

Genotypic ratio = 2:2

Phenotypic ratio = 2:2

Explanation:

In image attached

what is the difference between threatened and endangered species

Answers

Endangered is when group of species are at the edge of extinction.
Threatening is when group of species are at the risk of extinction in future.

why is the concentration of oxygen in the body cells lower than the concentration of oxygen in the alveolus?

A. Alveolus can produce oxygen.
B. The exchange of gases occur in the alveolus.
C. Oxygen is used up for respiration I the body cells.
S. Oxygen diffuses out from the body cells.​

Answers

Answer:

i think the answer should be b.

the alveolus is the site of exchange of gases (carbon dioxide and oxygen) between the body cells and the alveolar air. diffusion requires a concentration gradient, which basically means that there has to be a difference in concentration of the substance (in this case it's oxygen) between the 2 areas (in this case it's the body cells and the alveolar air) hence, there is more oxygen in the alveolar air than the body cells (this difference in concentration is what allows diffusion of oxygen from a region of HIGHER to LOWER concentration!) this allows oxygen to diffuse from alveolus to body cells, giving your body the oxygen it needs!

btw keep in mind that i am by no means an expert in biology (because im still a student), but b is the most logical answer to me. good luck!

Label the parts abcd

Answers

Answer:

A- sensory receptor

B-sensory neuron

C- Relay neuron

D-Motor neuron

E-effector muscle in arm

Explanation:

Which statement best explains why these siblings are genetically different from each other?

Answers

Answer:

Only one chromosome from each pair randomly passed to the s*x cells during meiosis and leads to differences between the siblings.

what is an environmental concern regarding genetically modified plants that are resistant to herbicides and the other similar plants located near them?

Answers

Answer:

Biodiversity Loss

What are some ways people in Everglades are getting rid of Burmese Pythons?

Answers

Answer:gas

Explanation:when i learned about this we used gas bombs to rat them out and poisin them

All cells come from other cells. New cells are created by a process called cell division. To start cell division, a cell grows bigger and makes copies of the parts inside it. Then, the cell and its parts separate into two new cells. Each new cell contains the same types of cell parts as the original cell. Later, each of these cells may divide again to form more cells. When a multicellular organism's cells divide, the organism can grow. Each resulting cell is part of that organism. When a unicellular organism divides, each resulting cell is a separate unicellular organism. The micrographs below show cells from two different organisms: Giardia, a unicellular protist, and banana, a multicellular plant. Giardia cells in a banana Which of the following statements are true? Select all that apply.?

a. A rose bush cell can divide to form two rose bushes
b. If the bacterium divides, it will become a multicellular organism
c. When a rose bush cell divides, it copies its parts then divides into two cells
d. The bacterium was formed when another bacterium divided

Answers

Answer:

c. When a rose bush cell divides, it copies its parts then divides into two cells and

d. The bacterium was formed when another bacterium divided

Explanation:

C is correct because the cells inside are part of a larger being (the rose bush), when they divide they are simply creating more cells (hence making the rose bush grow).

D is correct because bacterium are unicellular organisms, meaning they are themselves single cells that are organisms, unlike the rose bush consisting of  many cells.

Please rate this answer choice 5 stars and leave a thanks.

I really need help please

Answers

Answer:

There should probably be some proof in the information above, but the mass would be lost through excretion, respiration, sweating,  and movement

Explanation:

Answer:

Ok, in the diagram it looks like there are arrows pointing to its mouth and its rear end right so my best guess would be that the rabbit eats the food, some of the mass is turned into energy and the rest of it goes out the rear end. I'm assuming they want you to explain how mass is turned into energy and travels throughout the body.

Explanation:

Green plants are ___. This means that they can survive without ___.

Answers

Answer:

Green plants are producers. This means that they can survive without animals.

Green plants are ___. This means that they can survive without ___.

Answer: Green plants. They can survive without animals. They produce their own food (sugar/glucose). Organic chemicals such as sugar, starch, fat, and proteins.

The final answer: producers


How does your body respond to a decrease in blood glucose

Answers

Answer:

When blood sugar drops too low, the level of insulin declines and and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal

Explain how scientists can have multiple theories about the effects of global warming.
Plz make it about 3 sentences

Answers

Answer:

1. global warming is caused by excess carbon dioxide

2. it melts glaciers

3. it cause ozone to break

Answer:

ANSWER FROM EDGE 2022 :  The global climate is a complex system involving different factors such as temperature, precipitation, pressure, humidity, and wind. The complexity of the system makes it difficult to accurately predict how changes in one region can affect other regions.

NOT COPIED ANSWER: Data collected over years show that the global average temperature is steadily rising. Scientists will be able to develop multiple hypotheses about the effects of global warming in the coming years because of this.

Both choices is correct! First one is from edge second is mine I answered personally.

Explanation:

got it correct ik I'm late but for upcoming students! edge 2022.

for an enzyme to be able to catalyze a reaction, the active site must —

Answers

Answer:

Active site of an enzyme must be attached to a substrate

Explanation:

Active site of an enzyme must be attached to a substrate

For an enzyme to be able to catalyse a reaction, the active site must bind with the specific substrate. This is referred as 'enzyme-substrate' complex.

Why do enzymes catalyse a reaction?

Enzymes have the property of catalytic activity. All the enzymes are proteinaceous in nature. Enzymes specifically bind with the substrate and thus initiates a catalytic reaction. This is referred as enzyme-substrate specificity.

Enzymes associate with the substrate at a specific site by lowering the activation energy. This forms the active site where the reaction occurs. The substrate thus transforms into the product upon the action of enzyme.

Enzymes are unique as they speed up any chemical reaction. They help in achieving the equilibrium at a faster rate. Daily thousands of enzymatic reactions are carried out in the body.

Thus, enzymes are important in the biochemistry as they persuade chemical reactions.

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why is biodiversity in a certain environment important?


pag tama ung answer i brainliest you

Answers

Answer:

That's right. You have listed important determinants and features of biodiversity.

Explanation:

Pa fallow po pls.

No clue dude tuff luck my guy
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