Answer:
Light rays are focused to form real images.
Explanation:
All modern cameras use light rays that are focused to form real images which is a copy of the scene in front of them.
Lenses in a camera serves as the eye of the device by which light rays enters.
- Modern cameras, collects light rays from a body.
- The light source emit by a body reaches the lens at different times.
- They then converge on the screen to produce an image that is reach and looks exactly like the source where they emanate from.
- This is how most modern cameras produce their image.
Answer:
B) Competition
Explanation:
According to the statement, the farmer has planted <u>two species</u> that <u>requires same nutrients</u> for their <u>survival</u>, thus, they are competing with each other for nutrients acquisition only.
<u>Mutualism is not possible</u> because, in this interaction, <u>both species provides nutrients or other services</u> that are beneficial for each partner. Here, both species don't compete at all rather <u>they complement each other</u> for better survival and growth in nature.
Likewise, in <u>commensalism</u>, <u>one species provides benefits</u> whereas <u>other species doesn't provide any benefits neither cause harm</u> to the first species. In the given question, no beneficial partner is involved, and also there is no neutral interaction exists (both are competing).
Lastly, <u>parasitism is neither possible</u> here because it is an interaction where <u>any of the species starts eating the other species</u> directly for its growth and development. In this category, the fittest will survive and other species will die. In this situation, it might be possible that one species is more aggressive and could behave opportunistically but, still, it is not directly eating the other species (feeding biomass) for its own survival.
Number 45 is c and number 46 is f
I think it's mitosis or meiosis
Answer:
Heterozygous, and would express the dominant trait.
Explanation:
If the dog has one allele for each trait (A and a) it would be considered heterozygous because it has two different alleles for that particular gene, and since A is dominant over a (indicated by the capital A) the dog will express whichever trait is linked to the A allele.