Semipermeable means only certain substances can pass through. I imagine you are talking about cell membranes which are semipermeable. This means vital things like oxygen and nutrients are able to pass through the membrane, while not allowing everything to enter the cell
Answer:
B) It showed that humans are in the species sapiens.
Explanation:
Cladistics was invented for the purpose of improving on taxonomy and it is a way to deal with biological classification. DNA technology lead to more use of cladistics because it changed ideas about which animals were closely related and also it showed new evolutionary relationships between animals.
Answer:
Above
Explanation:
The anthers are always above the stigma.
<span>D. Temperature and pH can affect how enzymes work.</span> The action of enzymes can be affected by many factors including temperature, pH and ionic strength. Optimum pH differs per enzyme. Enzymes can be destroyed by heat more than the allowed optimum temperature.
Answer: D
Reactants are the compounds on the left hand side of the equation where the arrow represents, the reaction from the reactants to the products. Therefore the products are the result on the right hand side. Therefore the answer is D