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Nimfa-mama [501]
2 years ago
7

Which three of these classes of animals practice internal fertilization?

Biology
1 answer:
Reika [66]2 years ago
4 0

Answer:

Mammals

Explanation:

This is because the sperm meets the egg and fertilizes it in a female mammals which occurs in the ovary

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What was Griffith’s explanation for the experiment’s results
Serjik [45]

Answer:

Griffith concluded that the R-strain bacteria must have taken up what he called a "transforming principle" from the heat-killed S bacteria, which allowed them to "transform" into smooth-coated bacteria and become virulent.

Explanation:

5 0
3 years ago
True or False? As the energy is transferred from producers to consumers, energy is gained.
Natali [406]
False because it's using energy to do the work. one way to gain energy is by making it. but yet again this is my thought but like i said it's false. 
6 0
3 years ago
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Rachael wants to test how sunlight impacts plant growth over time. She will add varying amounts of light to different sets of pl
Mrrafil [7]

Answer:

Independent variable: varying amounts of light

Dependent variable: plant growth

Explanation:

The variable, which are factors that can be altered, in an experiment can either be independent or dependent. An independent variable is one in which the experimenter manipulates or controls in order to bring about an outcome. For this experiment conducted by Rachel, the independent variable is the VARYING AMOUNT OF LIGHTS.

The dependent variable is the variable that responds to changes of the independent variable. In other words, the dependent variable is the outcome of manipulating the independent variable. Hence, the dependent variable is dependent on the independent variable. For Rachel's experiment, the PLANT GROWTH is the dependent variable because it is what responds to changes in amount of light (independent variable).

4 0
3 years ago
Which most accurately describes the basis of the scientific method?
Tanzania [10]

The scientific method's foundation is best described as "the process of hypothesis and testing through which scientific inquiry happens." Thus, the correct option is D.

<h3>What is scientific method?</h3>

The scientific method is a set of actions that are followed in order to develop scientific knowledge.

The scientific process includes the following steps:

  1. To make observations on a particular natural occurrence and then generate questions based on those observations.
  2. To answer these questions, you must propose a credible explanation (i.e., a hypothesis).
  3. To put the working hypothesis to the test using experimental and/or observational methods.
  4. To gather information in order to confirm or refute a working theory.
  5. Analyze the findings and develop conclusions.

For more information regarding scientific method, visit:

brainly.com/question/17216882

#SPJ1

5 0
1 year ago
3. In tropical regions,
marin [14]

Answer:

a, a permanent thermocline traps nutrients in the deep water

b. primary productivity is high all year round, because there is a constant supply of solar energy for  photosynthesis.

Explanation:

Thermocline occurs in the tropical regions because the temperature is very high which warms the upper layer of water bodies whereas the lower layer of water has low temperature due to no sunlight. The primary productivity is high all year in the tropical regions, because there is a constant supply of sunlight that is needed by the plants for  preparing their own food.

3 0
2 years ago
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