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lord [1]
3 years ago
9

A student plans to conduct an experiment to determine how a change in the pH of water affects the population growth rate of alga

e. To ensure that her experimental data are valid, she should ?
Biology
1 answer:
kifflom [539]3 years ago
6 0
The student should make sure that the instrument she will be using to measure the pH of the water is valid.

Validity is concerned with an object's goal is able to measure the intended object.
<span> With this conclusion validity, our data gathered and presented are considered a reasonable one. It is the most important types of validity. As what is said, by having conclusion validity, your data will be undoubtedly least considered since it is labelled as statistical and well-studied. Once you already mention the word statistics meaning it is studied and surveyed with the most of the human race and includes relationship in your data.</span>

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What happens to the body cells if the kidney produce very little urine?
Andreas93 [3]

Explanation:

Having filtered out small essential molecules from the blood - the kidneys must reabsorb the molecules which are needed, while allowing those molecules which are not needed to pass out in the urine. Therefore, the kidneys selectively reabsorb only those molecules which the body needs back in the bloodstream.

4 0
3 years ago
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Which of the following is a dihybrid cross?a. RrMM Rrmmb. RRMM rrmmc. RrMm RrMmd. rrMM RRmme. RrMm rrmm
Minchanka [31]

Answer:

c. RrMm x  RrMm

Explanation:

A dihybrid genotype is the one that is heterozygous for two genes. Hence, a dihybrid cross is a cross between two individuals that are hybrid for alleles of two different loci.

Among the given examples, the cross RrMm x RrMm is a dihybrid cross. Here, both given genotypes are heterozygous or hybrid for two loci (both genotypes have one dominant and one recessive allele for both the genes under study, R and r; M and m).

This cross explains the inheritance of two loci or two genetic traits. Hence, it is an example of dihybrid cross.

3 0
3 years ago
Reproduction for dolphins and badgers and people is more complicated because
kupik [55]

Answer:

C. go through the cellular process of MITOSIS to produce sex cells.

Explanation:

Why?

A. You Don't need a license to produce an organism.

B. You can produce without a partner on which is called Asexual reproduction.

C. Every living thing needs to go through MITOSIS to produce sex cells to create an organism.

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4 0
3 years ago
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A ____?___ allele exhibits its phenotype when it is present on both the chromosomes.
faltersainse [42]
A recessive allele is shown in the phenotype 
3 0
3 years ago
Which gland secretes the most important hormone controlling calcium balance in the blood?
quester [9]

Answer: The Parathyroid gland

Explanation:

The Parathyroid gland secretes "Parathormone", an hormone that exerts

- direct influence on the bone by INCREASING the release of bone calcium ion (Ca2+) into the blood

- affects the kidney by stimulating the renal tubules to eliminate EXCESS calcium in the urine.

Thus, the calcium balance of the body depends on the secretion of the Parathyroid gland

7 0
3 years ago
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