The correct answer is A. Robert wanted to see if his theory was true that cigarette smoke will influence web-building in spiders.
Explanation:
In the scientific method and science, the correct term to define the explanation proposed by a scientist about the phenomenon or event he wants to study is a hypothesis. On the other hand, the term theory in science is used to refer to explanations that have been repeatedly proved or confirmed. This implies the idea "cigarette smoke will influence web-building in spiders" in Robert's experiment is a hypothesis and not a theory and therefore, the statement "Robert wanted to see if his theory was true that cigarette smoke will influence web-building in spiders" contains an incorrect use of a scientific term.
Answer:
Embryo with single cotyledon
Explanation:
Monocot, also known as monocotyledonous plants are a group of flowering plants (angiosperms) that possess one seed-leaf or cotyledon, which is contrary to the two-seed leaves possessed by dicots. Monocot plants have other characteristics that differentiate them from dicots as follows:
- Their flower parts are in multiples of three.
- It's major leaf veins are reticulated
- Pollen with single furrow or pore
However, the embryo of monocots are with a single cotyledon.
Answer:
A.
Explanation:
A large amount of granulation tissue converted to dense irregular collagenous connective tissue during tissue repair
I believe your stance on mutation is in needs to be re-evaluated. The articles I’ve been reading say that mutations are either harmful or neutral. There are, however, such things as beneficial mutations. For example, there are people with mutations in the CCR5 gene that make them virtually immune to HIV. There are also a class of cancer drugs that are 100% effective, but only in a minority of individuals that have a certain mutation. Both of these mutations could seriously improve a person’s chance of survival. I therefore fail to see what makes you think all mutations are bad?