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2 years ago

Light pollution harms plants and animals because they confuse it with _____.

Biology

2 answers:

Kaylis [27]2 years ago

8 0

I’m just guessing so I think the answer is sunlight

Nata [24]2 years ago

4 0

Answer: The natural light present in the environment ( sunlight)

Explanation: The plants and animals get confused with the artificial light that is used by the human beings. The artificial lights confuse the plants and animals and it affects their biological cycle.

The plants have certain period of time for their light reactions and dark reactions and they get confused by the light that is artificial. The animals also gets disturbed by the these lights.

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The best way to "untie" a male and female after the male has ejaculated is to?

charle [14.2K]

"Do nothing until it happens naturally" is the one among the following choices given in the question is the <span>best way to "untie" a male and female after the male has ejaculated. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer helped you.</span>

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2 years ago

Read 2 more answers

There are two types of viral replication:

dedylja [7]

Answer:

There are two processes used by viruses to replicate: the lytic cycle and lysogenic cycle. Some viruses reproduce using both methods, while others only use the lytic cycle. In the lytic cycle, the virus attaches to the host cell and injects its DNA.

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2 years ago

Contraction of the muscle that is attached to the radial tuberosity results in

jolli1 [7]

Answer:

Bending or flexion of the forearm and elbow

Explanation:

Radial tuberosity, alongside head and neck, is one of the important landmarks of the radius. It is a bony projection on the middle side of the radius where the tendons of the biceps branchii muscle insert itself.

In Anatomy, Radial tuberosity can be found at the center right of the left elbow and the upper left of the left forearm when the palm is facing upward.

The contraction of the biceps branchii muscle results in the flection or bending of the forearm and elbow

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2 years ago

Rigor mortis occurs because ________.

Kamila [148]

Answer:

No ATP is available to release attached actin and myosin molecules.

Explanation:

Two to six hours later after death, all skeletal muscles of the body become rigid and stiff. This situation is defined as Rigor mortis. It occurs from the lack of ATP along with the production of lactic acid. When breathing stopped permanently in the body, oxygen level also reduced; that’s why body muscles cannot go for any aerobic respiration to produce any ATP.

As we know already, during every muscle construction, ATP needs to break the cross-bridge between Myosin and Actin. So if there is no ATP produced in the body, separation of Myosin molecules from Actin molecules cannot happen anymore. This situation leads for rigor mortis.

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3 years ago

The dominant allele H reduces the number of body bristles in fruit flies, giving rise to a hairless phenotype. In the homozygous

DerKrebs [107]

Answer:

a. 3:1 (normal bristles to hairless)

b. 2:1 (normal bristles to hairless)

Explanation:

a. If H allele is present, the fly will be hairless. But H allele is lethal at homozygous condition, so all hairless flies will be heterozygous for H locus (Hh). S allele has no effect on bristle number, but in presence of H allele, S produces a "normal" phenotype and is also lethal at the homozygous condition. So genotypes and phenotypes will be like this:

- SSHH: No viable- Lethal

- SSHh: No viable-Lethal

- SShh: No viable-Lehtal

- SsHH: No viable-Lethal

- SsHh: Normal

- Sshh: Hairless

- ssHH: Normal

- ssHh: Normal

- sshh: Normal

A cross between two normal flies carrying the two alleles (SsHh) will produce (according to the attached Punnett Square):

6 Normal (SsHh, ssHh, and sshh)

2 Hairless (Sshh)

Therefore, the ratio of flies with normal bristles to hairless individuals will be 3:1.

b. When the hairless progeny of the previous cross (Sshh) are crossed with one of the parental normal flies from part a (SsHh), it will be produced (according to the second Punnett Square):

8 Normal (SsHh, ssHh, and sshh)

4 Hairless (Sshh)

So, the ratio of flies with normal bristles to hairless individuals will be 2:1.

7 0

2 years ago