BIOLOGY HIGH SCHOOL

Which of the following explains how natural selection leads to evolution? A. Conditions in the environment reduce competition for resources within a species. B. Helpful variations accumulate among surviving members of the species. C. Overproduction provides food for stronger members of the species. D. Environmental changes favor weaker members of the species.

Answers

Answer 1
Answer: B.


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Answer 2
Answer:

Environmental changes favor weaker members of the species.

Related Questions

If a cell's DNA were not copied before cell division, the cell coulda) Have a DNA overload b) become cancerous c) fail to exchange materials d) divide
Which of the following statements regarding human genetic disorders is accurate?A. Disorders in individual genes can cause disease or provide individuals with a genetic advantage.B. Nondisjunction can lead to an incorrect number of sex chromosomes.C. Nondisjunction is responsible for causing Huntington's disease.D. Disorders in individual genes are responsible for Down's syndrome.
What role does convection play in the atmosphere?
Protein can be found in both animals and vegetables.a. Trueb. False
Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the charges

Both plants and fungi have cell walls made up of cellulose.
a. True
b. False

Answers

A. True. If you need any help I am here!

How do orgasims interact with an ecosystems

Answers

They can make up a symbiotic relationship with an ecosystem. For example, a tree may have a fungus on it, where the fungus feeds off some of the trees food. This is commensalism, where only one thing in the symbiotic relationship benefits and the other is caused no harm. 
There is parasitism, where one thing is harmed and the other thing benefits in the symbiotic relationship. Then there is mutualism where both things in the symbiotic relationship benefit. 

Tissues are made of a grouping of cells.
a. True
b. False

Answers

The correct answer is A. True

Explanation:

Tissues are the basic structure of organs in both plants and animals. These are made of groups of specialized cells that have specific biological functions. For example, in animals muscles that support the movement are composed of muscle cells that had a specialized structure and function for this. This also applies to plants that are made of epidermal, vascular and ground tissues. According to this, it is true tissues are made of a grouping of cells as each tissue contains sets or groups of specific cells.
This answer is True! 
Cells that all work together to do the same job, make up a tissue. 
For example, the skin, is a tissue. It protects the body, and manages it temperature. 
:P

When in doubt, eat a pineapple! <3

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Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Check all of the following that could be used to decide whether the things Judy saw were living. (

Answers

Answer:

Living Cells created from the dead grass

Explanation:

Because the water has nutrients.

A DNA molecule is shaped like aa. long, thin rod.
b. spiral staircase.
c. straight ladder.
d. triple helix.

Answers

people say it's either a twisting ladder or a double helix (not triple) so I's go with B.

Answer:

he right

Explanation:

During migration, animals undertake a a. seasonal movement
b. repeating daily cycle of behavior
c. sleeplike state
d. search for a new permanent habitats

Answers

Animals undertake a. seasonal movement 

This is easily noticed by birds who go to warmer climates during winter and return to their habitats during spring.
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True or false: homologous chromosomes separate during mitosis?
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Cone-bearing trees (like pines, spruce and fir) grow best in areas where winters are long and cold. Large mammals like moose, elk and bear also live and thrive in these cold areas known collectively as the ________________ biome. A) taiga B) desert C) temperate grassland D) temperate deciduous forest